Photosynthesis is dependent on light and heat

Photosynthesis is - . thenlevelsoff

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Photosynthesis is dependent on  light  and  heat . Photosynthesis only occurs  when light is available so that longer days produce more plant growth.  Photosynthesis also increases with temperature to about 20 degrees Celsius and  then levels off.  Net photosythesis  is measured as the carbohydrate remaining after respiration  takes up carbohydrate to feed the plant. Net photosynthesis increases with  temperature until approximately 18° C, after which it declines as the rate of  respiration increases faster than the rate of photosynthesis.  Net primary production  is the annual amount of useful energy produced by an  ecosystem. It is controlled by light intensity and duration, temperature and water  availability. Net primary production is measured as biomass, the dry weight of  organic matter per unit area within an ecosystem.  Biochemical cycles  are the pathways of particular nutrients or materials through 
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This note was uploaded on 11/10/2011 for the course GEA GEA2000 taught by Professor Wong,faith during the Fall '09 term at Broward College.

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Photosynthesis is - . thenlevelsoff

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